🛠️ Mine Machinery MCQ Questions - Part 03
31. Drilling machines used in mines are mainly of the type:
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Answer: C. Both A and B
32. Loaders are mainly used for:
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Answer: A. Excavating and transporting ore
33. A dumper used in mines must conform to:
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Answer: C. Both A and B
34. The key maintenance aspect for underground drilling machines is:
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Answer: D. All of the above
35. DGMS Regulation for electrical machinery states that:
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Answer: A. Must be flameproof
36. The capacity of a typical belt conveyor used for mineral transport is usually:
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Answer: B. 200–500 tph
37. According to DGMS, the minimum safety distance for diesel equipment in underground mines is:
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Answer: C. 180 meters
38. Main purpose of machinery inspection in mines is:
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Answer: D. All of the above
39. The DGMS specifies that mobile equipment must be:
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Answer: D. All of the above
40. The typical life span of a mine loader is:
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Answer: B. 10–12 years
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